Ventilator



Sept- '17 1929- v. A. TRIER 1,728,777

VENTILATOR Filed Aug 8, 1928 Patented Sept.-17, 1929 UNITED STATES PATENT ,oFFlcE VERNON ANTHONY TRIER, OF LNDON, ENGLAND VENTILATOR Application filed August 8, 1928, Serial No. 298,388, and in Great Britain December 1, 1927. l

This invention relates Ito ventilators for use with windows of the sliding sash type and has for its object to provide an improved form of the known louver or ksimilar ventilator which is particularly, though not eX- clusively, applicable to vehicle windows.

According to this invention a louvered or like ported member is provided adapted to be secured as a separate itting or unit in a detachable manner to the window or window frame so as to occupy part of the opening normally closed by the sliding window, thus providing for ventilation independently of the main window opening.

In a simple form the ventilator comprises a ported trame adapted to be secured to the upper edge of. the window or sash so as to partake in its sliding movement, the ported frame occupying` a space between the upper edge of the window and the upper rail of the frame. The frame is provided with a sliding plate or the like to control the air admitted through the openings therein without altering the structure of the window frame or of the sash.

A construction of Ventilating device in accordance with this invention are illustrated by way of example in the accompanying drawings, in which Figure l shows one construction in elevation,

Figure 2 is a crosssection on the line 2-2 of Figure l also showing the upper part of the sliding window,

Figure 3 is an end elevation of Figure 1,

Figure 4L shows the ventilator illustrated in Figure l placed in position.

In the Construction shown in Figures 1-4, the ventilator' comprises a rectangular metal 40 frame A in the form of an inverted U the parallel sides of which have ports A2 provided with vertical louvers A1 on the outer side. A shutter B furnished with an operating knob C is mounted to slide between the two parallel sides of the frame A to control the ports A2. The lower edges of the frame A forma channel D adapted to receive the upper edge of the sliding sash E to which the frame can be clamped. For this purpose clamping screws F are provided,

furnished ywith distance pieces F1l which limey it the extent to which the sides can be drawn together and thus prevent damage to the slideswith the sash E in the window guides Glass. When the frame A is so attached, it

G so that if the sash is fully raised (as shown by dotted lines in Figure 4) the upper edge of the iframe A engages in the groove G1 in the upper rail of the window 'frame H. Air can therefore be admitted through the ports A2 without letting down the sash.

The 'frame A is preferably adjustablein e length to suit the width of the window opening and therefore is'provided at one or bothy ends with an extension` piece J adapted to slide within or upon the frame and furnished with a locking device such as a screw lJ1 and c also with a window-clamping screw' F 2.

It will he understood that thefparticular form of louver or like hood to protectthe ports from the Aadmission of rain or moisture may vary and that any known device to prevent draught or rattle may be employed without departing' from this invention.

What I claim as my invention and desire to secure by Letters Patent is For use with windows of the kind comprising a trame anda sash adapted to slide therein, a Ventilating device comprising',k a U-shaped frame having similar openings formed in its parallel walls, means :fory detachably connecting the edgeswof the frame to the upper edge of the sliding sash so that 1 the frame and sash can move as a unit within the window frame, a plate mountedto slide between the parallel sides of the frame to control the ports therein, and a memberadjustably connected to each end of the frame whereby the effective length of the frame can be varied to suit the width of the sliding sash and window frame with which it cooperates.

In testimony whereof I` have signed my name to this specification. c

VERNONTANTHONY TRIER. y 

